C31231211111133131211113313331333133112111133132322121111331333221223213223311   >>    C3123121111113313121111331333133313311211113313232212111133133322122321322331   <<    C31231211111133131211113313331333133112111133132322121111331333221223213223313   >>      C31231211111133131211113313331333133112111133132322121111331333221223213223312   >>